Paper folding and pasting machine



(No Model.)

PAPER FOLDING AND PASTING MACHINE.

P10341333. v 'P-atentedAug.17,1886.

. if MW, wam-Qflma w f along under the wheel.

UNITED, STATES PATENT i OFFICE.

TALBOT O. DEXTER, OF MOINES, IOW'A.

PAPER FOLDING AND PASTING MACHINE.

J1FECIIFICJMLION forming part of Letters Patent No. 347,333, dated August 17, 1886. Application filed January 19, 1885. Serial No. 152,632. (No model.)

To aZZ whom it ntay concern.-

Be it known that I, TALBOT O. DEXTER, a citizen of the United States of America, and a resident of Des Moines, in the county of Folk and State of Iowa, have invented an I mprovement in Paper Folding and Pasting Machines, of which the following is a specifica tion.

My invention relates to the manner of taking paste from a cup and applying it toasheet by means of a wheel.

Heretofore paste-distributing wheels have extended partially through a'slot in the bottom of apaste-cup in such amanner that paste adhered to their peripheries within the cup, and as they revolved upon a sheet of paper the paste was transferred from the edge of the wheel to the paper; but paste also adhered to the side faces of the wheels and caused the paper to be. daubed and smeared with paste outside of the narrow straight line that was covered by the wheel as the sheet was carried The carrying-tapes also failed to retain the sheet in close enough contact with the periphery of the paste-wheel to insure an even distribution of paste upon the paper as it passed along under the wheel.

My object is toremedy these defects, and I accomplish the same by the construction and combination of a wheelscraper and a sheetsupportcr with paper foldingand pasting mechanism, as hereinafter fully set forth.

Figure 1 of the accompanying drawings is a side'view, and Fig. 2 a top View, of my devices combined. Fig. 3 is a perspective view of the wheelscrapcr. Fig. 4 is a section of a sheet-supporter.

Together-these figures clearly illustrate the construction, operation, and utility of my complete invention. 7

A represents a rock-shaft attached to the frame of a folding-machine in such a manner that it will extend horizontally over a series of sheet-carrying tapes, B, that are supported by and moved upon a roller, B.

A is an extensible paste-cup carrier adjustably connected with the shaft A by means of an eye at its rear end and a set-screw in such a manner that it can be extended parallel with the tapes B or its free end raised and lowered relative to the tapes whenever desired.

. O is a paste-cup fixed on top of the free end of the carrier A". It has aslot in its bottom, through which the outer portion of a pastedistributing-wheel, G revolves.

D is the axle upon which the wheel revolves. The ends of the axle are hinged to the rockshaft A by means of arms, and the axle extends through eyes D formed on the bifurcated end of the cup-carrier A.

D is one of a series of friction-wheels fixed to the revolving axle D, to engage the roller B and to prevent the wheel 0 from pressing too hard upon the sheet of paper passing under it while the wheel is applying a line of paste upon the paper.

f f are scrapers pivoted at their centers to the bottom of the paste-cup G and atthe opposite sides of the slot in said bottom. Parts of their contiguous inner edges are cut away, so as to produce an opening for the wheel 0 to extend through as required to come in con tact with the paste in the cup. One end of this opening is contracted, so that the scrap ers will come in contact with the side faces of the wheel to prevent paste from adhering thereto when the wheel revolves and deposits paste from its periphery upon the sheet of paper carried along underneath the wheel by the tapes B.

y g are chambers formed on the ends of the pivoted scrapers f, to inclose a compressed coilspring, h, in such a manner .that the spring will keep the opposite ends of the scrapers closed against the revolving paste-distributing wheel as required, to prevent paste from being carried on the side faces of the wheel while it carries paste in the notched or milled surface of its periphery. I

J is a sheet-supporter fixed to a feed-table, K, in such a manner that its bifurcated end, which is clearly shown in Fig. 4, will project under the paste-distributing wheel 0', as shown in Fig. -1, to support a sheet as it passes from the table and is advanced upon the carryingtapes B, as required, to keep the paper in contact with the periphery of the wheel as it re volves and applies paste to the paper in a straight line where it is to be doubled and fastened to other portions of the same sheet.

I claim as my invention l. The duplex scraper composed of the platesff, having chambers g and the spring 71, in 3. The shaft; D, having a fixed paste-discombination with a paste-cup having a slotin tributing wheel, C and a series of frictionits bottom and a paste-distributing wheel exrollers, D", a roller, B", and a series of sheet- [5 tending into said slot, substantially as and for carrying tapes, B, and a sheet-support, J, ar- 5 the purposes shown and described. ranged and combined to operate in the manner 2. The combination of a paste-cup having a set; forth, for the purposes specified. slotted bottom, a paste-distributing wheel extending into a slot, a roller supporting sheet- TALBOT C. DEXTER. carrying tapes, and a paper-support extend- IO ing underthe paste-distributing wheel, to op- Vitnesses:

erate in the manuerset forth, for the purposes A. R. FULTON,

stated. I H. \V. BROWN. 

